Summary

Deciding that it's better to be safe than sorry, NASA has indefinitely grounded a $2 billion space telescope until the U.S. Air Force completes its inquiry into an errant launch last month involving the same rocket motor that will place the telescope in its final orbit. It's the latest in a long line of delays for the Chandra X-ray Observatory, originally set to go up last August as the third in a suite of four great NASA probes.